Guide for sole-sewing machines.



G. L. CORGORAN & G. A. DOBYNE. GUIDE FOR SOLE SEWING MACHINES.

APPLICATION FILED JULY 11, 1911.

1,134,036, Patented Mar. 30, 1915.

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G. L. OOROO RAN & G. A. DOBYNE.

GUIDE FOR SOLE SEWING MACHINES.

APPLICATION FILED JULY 11, 1911.

1,134,036. Patented Mar. 30, 1915.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

GEORGE L. CORCORAN AND GEORGE A. DOBYNE, OF ST. LOUIS, MISSOURI,ASSIGNORS T0 CHAMPION SHOE MACHINERY COMPANY, OF ST. LOUIS, MISSOURI, ACORPORA- TION OF MISSOURI.

GUIDE FOR SOLE-SEWING MACHINES.

Specification of Letters Patent.

Patented Mar. 30, 1915.

To all whom it may concern:

Be it known that we, Gnonen L. CORGORAN and GEORGE A. DOBYNE, citizensof the United States, and residing at St. Louis, in the State ofMissouri, have invented certain new and useful Improvements in Guidesfor Sole-Sewing Machines, of which the following is a specification.

This invention relates to shoe sewing machines, and particularly to thattype known as welt outsole stitchers. In sewing welt shoes it iscustomary to run the line of stitches close to the sole edge when sewingaround the fore part, and to run the stitches farther in at a greaterdistance from the edge when sewing along the shank. In some shoes theoutside edge of the sole also projects a greater distance from the upperthan the inside edge. In all cases however it is desirable to locate theseam at a uniform distance from the sole edge around the fore part,while at the shank the seam is located farther in. In present machinestwo guides are provided, one of these guides the shoe along the shankand the other guides the shoe along the fore part. The fore part guideis a sole edge guide while the shank guide engages the upper or thecrease between the upper and welt. The sole edge guide is throwncompletely out of the way when operating along the shank so that theshoe is at this time guided entirely by the crease guide. Due toirregularities in the upper and the inseam at the shank, the outseam isirregular and can not be accurately located in the channel in theoutsole, thereby causing the stitches to show on the surface of theoutsole when the channel flap is turned down and the sole leveled.

With the above in view, the objects of this invention are to constructwork guiding means which will guide the shoe in order to accuratelylocate the seam; to combine the work guiding means with the stitchvarying mechanism in such a manner that said means and mechanism may becontrolled and operated independently or in unison; and to improve themechanism as to details.

The invention will be described in connec tion with the accompanyingdrawings in which:

Figure 1 is a front elevation of an outsole sewing machine embodyingthis invention, Fig. 2 is a plan view, Fig. 3 is a section on the line33 Fig. 1, Fig. 4: is a view similar to Flg. 3, but showing the guide inanother position, Fig. 5 is a section on the line 55 Fig. 3, and Fig. 6is a section on the line 66, Fig. 3.

In accordance with this invention the machlne is provided with a worktable for supporting the sole at its edge. A guide is provided whichengages the edge of the sole supported on the table, and this guide isadapted to continuously engage and externally guide the shoe during thesewing operation. The guide is arranged to be moved during the sewingoperation to two positions, in one of these positions it guides the shoealong the shank, and in the other position it guides the shoe along thefore part. The shoe is thus continuously guided by the sole edge, andthus the seam can be located a correct distance from the sole edgewhether operatmg along the shank or around the fore part.

In machines of this type, means are pr0- vided for varying the length ofstitches, and it is customary to make the stitches longer along theshank than around the fore part. Both the stitches and the guide must bevaried during the operation of sewing a shoe, and the operatingmechanism must therefore be arranged so that it can be operated duringthe operation of the machine. It is however sometimes desirable to makethe length of the stitches uniform all around the shoe. In accordancewith this invention therefore, the operating levers for the guide andthe stitch varying mechanism are so arranged that they can be operatedindependently or in unison.

The machine to which this invention is shown as applied is shown anddescribed in application Serial No. 631,290, filed June 5, 1911. Themachine may however be a well known form of outsole stitcher, such as isshown and described in Patent No. 473,870, granted April 26, 1892.

Referring to the accompanying drawings, 10 designates the machine framewhich has mounted upon it a feed slide guideway 11.. A lug 12 on themachine frame supports the needle segment 13, its curved needle, and thetable or work support 1 1 which has a slot for the awl and needle. Afeed slide 15 is supported to slide in the guideway and is provided witha vertical post 16 for pivotally supporting the usual awl segment 17 andits curved awl. A forwardly extending bracket 18 forms a pivot bearingfor the actuating lever 19 which is provided with a segmental. guideway.A link or lever 20 is pivoted at one end to a block 21 mount ed in thepost 16, and is provided at its other end with a block 22 sliding in theguideway in the actuating lever. The block21 is slid ably mounted in thepost 16, -a'ndis arranged to be adjusted thereinby means of theadjusting shaft'23 having-an eccentric pin 119 engaging a slot 1 18 inthe block, and the block i-s'loc'ked in position by means of the lockingpin 24. Both of the adjusting and locking devices extend forwardly so asto be accessible for adjustment from "the front of the machine, as'fullydescribed in United. States Patent N 0. 1,032,303, granted July 9.,191-2. The link 20 is provided with a handle 25 "extending over theactuating lever 19 so that the block 22 may be adjusted in its guidewayto vary the length of the stitches. The actuating lever is provided witha plurality of holes adapted to receive pins or stops 26 "arranged toarrest the handle and the block in adjusted position. The usualPresser-foot is shown at 27. The construction so far described is fullyshown and described in the application referred to, to which referenceis had for the details of construction.

j The post 16 is machined to form a horizontal-'guideway 30 for aslide'or guide carrie'r'3 l. This slide has an upwardly extending arm 32provided with a guide member 33 'which extends over and upon the upperf'ac'eof the work table 14. The slide 31 is provided with a slot 34which receives a pin 35 screwed into the post, and a friction washer 36is mounted upon this pin and bears against the outer face ofthe slide tofrictionally hold thesame in adjusted position. The lug 37 forming theupper face of the gui'deway is bored to receive a pin or stop 38 whichis provided with a threaded and slotted head 39 so that thestop may beadjusted in the lug. This stop is arranged to be engaged by a lug 40formed on the 'slide'31to locate the slide and its attached "guide'i'none of its positions. A second stop 41 slot-ted at its forward end, isthreaded into the slide 31, and is provided with a lock nut 42. Thisstop is arranged to cooperate with the front face of the post 16 tolocate the slide and its guide in another position. 'The slide 31 isprovided with a rack 43 arranged to mesh with teeth 44 on a lever 45pivoted at 46 upon the pivot bolt 47 for the link 20. The lever 45 isprovided with a handle 48 located above and adjacent to the handle 25but slightly shorter.

The guide 33can be moved to any desired position by means of itsoperating lever 48. The'stops 38 and 41 are arranged to posi- -entlyadjusted bya'djustingthe stops. The

friction washer36 is arranged to 'frictionally hold the slide 31 and theguide 33 mounted thereon-in its forward position. The tension of thiswasher can be made suflieiently great to accomplish this, since theleverage ofhandle 48 is great enough to enable the slide to beea'silyshiftedfeven though the resistance to movement offered by the washer isgreat. It will also be noted 'thatthe guide 33 isat a considerabledist'ance above the guideway "30 so that any pressure exerted thereonwill cause "binding of the "slide in its guide'w'ay and thusfserve top'revent retrograde movementof the 'guide. It -will thus'be seen thatthe guide can be shifted to two positions with respect to thestitch-forming mechanism, =a 'nd tha t the guide 'will be maintained andheld in-either o-f said positions. The two positions are illustrated inFigs. 3 and 4.

I In theoperation of sewing a shoe the projecting "edge of the welt issupported-upon the table 14. When starting to sew along the shank theguide is thrown back 'to the position shown in -Fig. '4, by moving thelever 48 forwa rd-ly from the position shown in Fig. 2 "until the stop41 arrests its movemerit. The shoe is then guided by the guide engagingthe sole edge of "the shoe. WVhen sewing around the fore part, the lever48 will be moved ba'ck'to the posit-ion shown in 'Fig. 2- so as to"bring the slide up against the stop 38 to locate the guide in-itsforward position ass'howvn in Fig. 3. At this time tlie shoeavi-l l alsobe guided by its-sole edge. It will therefore be seen thatthe sole edgeguide -'continuously engages and externally guides the shoe during thesewing operation performed upon the entire shoe, and that this guide isthrown "to its two positions when operating along the shank 'and aroundthe fore part respectively. V] hen operating along the shank the guideis thrown back so that the seam can be located farther in from'the edge,while when operating around the fore part the seam is located closer tothe-edge.

As pointed outit is sometimes desirable to lengthen the stitches whensewing along the shank. In order 'to lengthen the stitches the handle 25is 'pulled forward against the forward stop -26. 'It WVlllEL'lSO benoted that in orderto t'hrow the-guideback when sewing along the shankthe handle '48 is also pulled forward. In vie'w'of the fact that thehanclles'25 and 48 are located adjacent and one above the othentheoperator can move both in unison and with one hand in order to adjustboth the stitch varying mechanism and the guide. The handles may how-"ever be moved independentlyfto independently adjust the stitchvaryingmechanism and the guide. g

It will thus be seen that the invention accomplishes its objects. Sincethe shoe is guided continuously during the sewing operation by the soleedge guide, the seam may be located a correct distance from the soleedge, whether sewing along the shank or around the fore part. The lineof stitches may therefore be accurately located in the channel formed inthe outsole, so that when this channel is laid there will be noundesirable hump of the line of stitches appearing on the outsole. Theadjustable stops provide means for adjusting the seam with respect tothe sole edge for individual shoes, and these adjusting means as well asthe adjusting devices for the feed slide are accessible from the frontof the machine so that it is not necessary to use a wrench in thecrowded space adjacent the feed slide. The guide 33 is located andpositioned by stops on and engaging the slide or guide carrier 31. Bylocating the stops in the manner described, the guide will always belocated accurately irrespective of lost motion between the operatinglever 45 and the carrier, which is not the case if the stops cooperatewith the lever. It will be noted that the adjustment of the block 21will slightly vary the lost motion, but this has no effect upon theadjustment of the guide carrier since the stops cooperate with the guidecarrier itself.

It is obvious that various changes may be made in the details ofconstruction without departing from this invention, and it is thereforeto be understood that this invention is not to be limited to thespecific construction shown and described.

Having thus described the invention what is claimed is:

1. In a sole-sewing machine, the combination of stitch-formingmechanism, a table adapted to receive upon it and externally support theprojecting edge of the welt of a lasted shoe, a sole edge guide adaptedto con tinuously engage and externally guide the shoe during the sewingoperation, said guide being movable during the operation of thestitch-forming mechanism to one predetermined adjusted position to guidethe shoe, by engagement with its sole edge, along the shank, and movableto another predetermined adjustable position to guide the shoe, byengagement with its sole edge, around the fore part.

2. In a sole-sewing machine, the combination of stitch-formingmechanism, a table adapted to receive upon it and externally support theprojecting edge of the welt of a lasted shoe, a sole edge guide adaptedto continuously engage and externally guide the shoe during the sewingoperation, said guide being movable during the operation of thestitch-forming mechanism to vary the position of the shoe with relationto the stitch-forming mechanism, and two adjustable stops adapted to adjustably position the guide when sewing along the shank and around thefore part respectively.

8. In a sole-sewing machine, the combina tion of stitch-formingmechanism, a table adapted to receive upon it and externally support theprojecting edge of the welt of a lasted shoe, a feed slide, a guidemounted on said slide and adapted to engage and externally guide theshoe during the sewing operation, operating means for said slide, andmeans for positioning said guide in two positions, said operating andpositioning means having forwardly extending operating heads so as to beadjustable from the front of the machine.

4. In a sole-sewing machine, the combination of stitch-formingmechanism, a table adapted to receive upon it and externally support theprojecting edge of the welt of a lasted shoe, a feed slide, a gageslidably mounted upon and movable with said slide and adapted to engageand externally guide the shoe during the sewing operation, and stops onsaid feed slide adapted to position said gage in two positions on saidfeed slide.

5. In a sole-sewing machine, the combination of stitch-formingmechanism, a table adapted to receive upon it and externally support theprojecting edge of the welt of a lasted shoe, a sole edge guide adaptedto continuously engage and externally guide the shoe during the sewingoperation, said guide being movable during the operation of thestitch-forming mechanism to vary the position of the shoe with relationto the stitch-forming mechanism, a stop adapted to position the guide inone predetermined adjusted position when sewing along the shank, asecond stop adapted to position the guide in another predeterminedadjusted position when sewing around the forepart, and means for holdingthe guide when positioned by said second stop.

In testimony whereof we affix our signa' tures in presence of twowitnesses.

' GEORGE L. CORCORAN.

GEORGE A. DOBYNE. Witnesses:

J. V. MANNING, J. H. BRUNINGA,

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

